# Service bulletin TSB210032\-110820

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

- Type: Service bulletin
- NHTSA id: 10204430
- Published by NHTSA: 2021\-12\-13
- Manufacturer's number: TSB210032\-110820
- Manufacturer's date: 2021\-11\-08
- NHTSA component: ENGINE

## NHTSA's summary

This Technical Service Bulletin describes the verification and resolution of stuck intake air heater relay and intake air heater damage which may result in Fault Code 383, intake air heater malfunctions and trouble starting the engine. This is an update to a previously submitted communication.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2021/MC-10204430-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2021/MC-10204430-9999.pdf)

The document is the manufacturer's. This site does not hold it.

## Components

Engine

## Vehicles listed

- CUMMINS B6.7
- CUMMINS ISB6.7

JSON: [/v1/bulletins/10204430](/v1/bulletins/10204430)

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